Mach RAM treemap
Shows physical memory use as a proportional treemap, helping users see which processes and multi-process application stacks occupy RAM.
MacSentinel
MacSentinel is a native Swift macOS system monitor and app cleaner for Apple Silicon M1–M4 and Intel Macs. It helps users inspect CPU, RAM, storage, and network activity, then review application leftovers and caches before cleanup.
Native macOS monitoring and cleanup
MacSentinel is a native Swift system monitor and app-cleaning utility for macOS. It combines live RAM treemaps, per-core CPU telemetry, storage visualization, and per-application network monitoring in a universal binary for Apple Silicon and Intel Macs.
Its cleanup tools focus on reviewing data that commonly remains after applications are removed or projects are completed, including Application Support files, caches, containers, plists, render scratch, proxy folders, and other recorded app data. Users can inspect paths and sizes before cleanup; the download page also describes a Trash-first workflow for verified cache and scratch data. MacSentinel runs on demand rather than as a background service.
Core features
Per-core CPU monitoring
Displays per-core CPU telemetry, including separate Apple Silicon Performance and Efficiency core activity and microsecond execution deltas.
Storage and app cleanup
Maps directory hierarchies into storage treemaps and helps review leftover Application Support files, caches, containers, and plists in ~/Library.
Network telemetry
Reports per-application incoming and outgoing network traffic without requiring background daemons, making active transfer sources easier to inspect.
Smart Care cleanup review
Scans caches, scratch disks, proxy folders, and other app data across more than 500 apps in 50 categories, with search, paths, and byte counts in the preview.
On-demand native design
Runs as a native Swift utility without analytics SDKs, launch agents, telemetry pings, kernel extensions, or extra helper apps.
Practical use cases
Investigating performance problems
Inspect physical RAM allocation across demanding applications and multi-process stacks instead of relying only on a flat process list. Per-core telemetry can help investigate short CPU bursts and uneven Performance/Efficiency core activity.
Removing application leftovers
Map internal storage and review orphaned Application Support files, caches, containers, and plists left behind after applications are deleted, while checking each proposed item before cleanup.
Recovering space after video projects
Locate render caches, scratch disks, optical-flow data, proxy files, and waveform-related folders from video-editing applications. Smart Care provides searchable matches, paths, and sizes for a more targeted review.
Checking network activity
Check which applications or processes are transferring data by viewing incoming and outgoing network throughput per application, without installing a background monitoring daemon.
Pros and Cons
Pros
- Supports both Apple Silicon M1–M4 and Intel 64-bit Macs through one universal binary.
- Combines system monitoring with storage inspection and application-leftover cleanup in one utility.
- Provides itemized cleanup previews with paths and byte counts before files are removed.
- Designed without background services, kernel extensions, launch agents, or telemetry tracking.
Cons
- The product is limited to macOS 14 Sonoma or newer and does not target Windows or Linux.
- Some advanced diagnostics and unlimited cleanup require the Pro version.
- The download page lists a 14.5 MB DMG, but installed storage usage is not specified.
FAQ
What is MacSentinel?
MacSentinel is a native Swift macOS system monitor and app-cleanup utility. It combines live CPU, memory, storage, and network views with tools for reviewing leftover application data.
Which Macs and macOS versions are supported?
The download page lists macOS 14 Sonoma or newer. The same universal binary supports Apple Silicon M1, M2, M3, and M4 Macs as well as Intel 64-bit Macs.
How do I install MacSentinel?
Download the universal DMG, open it, and drag MacSentinel into the Applications folder. Then launch it from Spotlight or Launchpad; macOS verifies its Developer ID signature when the disk image is mounted.
What is included with the free version and Pro?
The free workflow provides scans and itemized previews. Pro adds unlimited cleanup, advanced diagnostics, and lifetime updates; the download page lists Pro at $29.
Does MacSentinel run background services or delete files immediately?
MacSentinel does not use analytics SDKs, launch agents, telemetry pings, background services, kernel extensions, or extra helper apps according to the download page. Cleanup previews items before deletion, and Deep Clean sends verified cache and scratch data to the macOS Trash first.
Quick Facts
- Category
- macOS system monitor and app cleaner
- Platform
- macOS 14 Sonoma or newer
- Architecture
- Universal binary for Apple Silicon M1–M4 and Intel 64-bit
- Download
- Universal DMG, listed at 14.5 MB
- Cleanup workflow
- Preview first; verified cache and scratch data can be sent to macOS Trash
- Product site
- sentinel.digital
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